| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For PRTA | |||||
| 2025-07-28 | Swanson, Chad J. | Chief Development Officer | Purchased | 85000 | $0.00 |
| 2025-07-28 | Smith, Brandon S. | Chief Operating Officer | Purchased | 130000 | $0.00 |
| 2025-07-28 | Nguyen, Tran | Chief Strategy Officer and CFO | Purchased | 95000 | $0.00 |
| 2025-07-28 | Malecek, Michael J | Chief Legal Officer | Purchased | 80000 | $0.00 |
| 2025-07-28 | Kinney, Gene G. | Director, President and CEO | Purchased | 140000 | $0.00 |
| 2025-07-28 | Zago, Wagner M. | Chief Scientific Officer | Purchased | 85000 | $0.00 |
| 2025-07-28 | Walker, Karin L | Chief Accounting Officer | Purchased | 25000 | $0.00 |
| 2025-05-14 | Welch, Daniel G | Director | Purchased | 20183 | $0.00 |
| 2025-05-14 | Kim, Helen Susan | Director | Purchased | 20183 | $0.00 |
| 2025-05-14 | Ekman, Lars | Director | Purchased | 20183 | $0.00 |
| 2025-05-14 | Dunn, William H. Jr. | Director | Purchased | 20183 | $0.00 |
| 2025-05-14 | Cooke, Shane | Director | Purchased | 20183 | $0.00 |
| 2025-05-14 | Collier, Richard T | Director | Purchased | 20183 | $0.00 |
| 2025-05-14 | Cobb, Paula K | Director | Purchased | 20183 | $0.00 |
| 2025-05-14 | Selkoe, Dennis J. | Director | Purchased | 20183 | $0.00 |
| 2025-05-06 | Ecor1, Capital, Llc | 10% Owner | Sold | 1984053 | $7.64 |
| 2025-05-05 | Ecor1, Capital, Llc | 10% Owner | Sold | 977693 | $8.11 |
| 2025-05-02 | Ecor1, Capital, Llc | 10% Owner | Sold | 3317938 | $8.36 |
| 2025-03-05 | Ford, David A | Chief People Officer | Purchased | 107500 | $0.00 |
| 2025-03-05 | Nguyen, Tran | Chief Strategy Officer and CFO | Purchased | 107500 | $0.00 |
